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Commit ef316cf0 authored by Richard M. Stallman's avatar Richard M. Stallman
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(skip_chars): Use INC_POS instead of INC_BOTH. 

(Fforward_comment): Always use both FROM and FROM_BYTE to set point.
Use dec_bytepos not DEC_POS.
(scan_lists): Handle unibyte buffers when decrementing temp_pos.
(INC_FROM): Use INC_BOTH.
(inc_bytepos, dec_bytepos): In unibyte mode, just increment bytepos.
parent d619ee06
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Showing with 36 additions and 34 deletions
src/syntax.c
View file @ ef316cf0
......@@ -294,6 +294,9 @@ INLINE int
inc_bytepos (bytepos)
int bytepos;
{
if (NILP (current_buffer->enable_multibyte_characters))
return bytepos + 1;
INC_POS (bytepos);
return bytepos;
}
......@@ -305,6 +308,9 @@ INLINE int
dec_bytepos (bytepos)
int bytepos;
{
if (NILP (current_buffer->enable_multibyte_characters))
return bytepos - 1;
DEC_POS (bytepos);
return bytepos;
}
......@@ -1367,7 +1373,10 @@ skip_chars (forwardp, syntaxp, string, lim)
while (pos < XINT (lim)
&& fastmap[(int) SYNTAX (FETCH_CHAR (pos_byte))])
{
INC_BOTH (pos, pos_byte);
/* Since we already checked for multibyteness,
avoid using INC_BOTH which checks again. */
INC_POS (pos_byte);
pos++;
UPDATE_SYNTAX_TABLE_FORWARD (pos);
}
}
......@@ -1388,7 +1397,10 @@ skip_chars (forwardp, syntaxp, string, lim)
while (pos > XINT (lim))
{
int savepos = pos_byte;
DEC_BOTH (pos, pos_byte);
/* Since we already checked for multibyteness,
avoid using DEC_BOTH which checks again. */
pos--;
DEC_POS (pos_byte);
UPDATE_SYNTAX_TABLE_BACKWARD (pos);
if (!fastmap[(int) SYNTAX (FETCH_CHAR (pos_byte))])
{
......@@ -1547,10 +1559,7 @@ between them, return t; otherwise return nil.")
{
if (from == stop)
{
if (! NILP (current_buffer->enable_multibyte_characters))
SET_PT_BOTH (from, from_byte);
else
SET_PT_BOTH (from_byte, from_byte);
SET_PT_BOTH (from, from_byte);
immediate_quit = 0;
return Qnil;
}
......@@ -1579,10 +1588,7 @@ between them, return t; otherwise return nil.")
{
immediate_quit = 0;
DEC_BOTH (from, from_byte);
if (! NILP (current_buffer->enable_multibyte_characters))
SET_PT_BOTH (from, from_byte);
else
SET_PT_BOTH (from_byte, from_byte);
SET_PT_BOTH (from, from_byte);
return Qnil;
}
/* We're at the start of a comment. */
......@@ -1591,10 +1597,7 @@ between them, return t; otherwise return nil.")
if (from == stop)
{
immediate_quit = 0;
if (! NILP (current_buffer->enable_multibyte_characters))
SET_PT_BOTH (from, from_byte);
else
SET_PT_BOTH (from_byte, from_byte);
SET_PT_BOTH (from, from_byte);
return Qnil;
}
UPDATE_SYNTAX_TABLE_FORWARD (from);
......@@ -1653,8 +1656,7 @@ between them, return t; otherwise return nil.")
comstyle = 0;
if (code == Sendcomment)
comstyle = SYNTAX_COMMENT_STYLE (c);
temp_pos = from_byte;
DEC_POS (temp_pos);
temp_pos = dec_bytepos (from_byte);
if (from > stop && SYNTAX_COMEND_SECOND (c)
&& (c1 = FETCH_CHAR (temp_pos),
SYNTAX_COMEND_FIRST (c1))
......@@ -1719,10 +1721,7 @@ between them, return t; otherwise return nil.")
leave:
immediate_quit = 0;
INC_BOTH (from, from_byte);
if (! NILP (current_buffer->enable_multibyte_characters))
SET_PT_BOTH (from, from_byte);
else
SET_PT_BOTH (from_byte, from_byte);
SET_PT_BOTH (from, from_byte);
return Qnil;
}
}
......@@ -1730,10 +1729,7 @@ between them, return t; otherwise return nil.")
count1++;
}
if (! NILP (current_buffer->enable_multibyte_characters))
SET_PT_BOTH (from, from_byte);
else
SET_PT_BOTH (from_byte, from_byte);
SET_PT_BOTH (from, from_byte);
immediate_quit = 0;
return Qt;
}
......@@ -1891,8 +1887,7 @@ scan_lists (from, count, depth, sexpflag)
case Sstring:
case Sstring_fence:
temp_pos = from_byte;
DEC_POS (temp_pos);
temp_pos = dec_bytepos (from_byte);
stringterm = FETCH_CHAR (temp_pos);
while (1)
{
......@@ -1941,7 +1936,10 @@ scan_lists (from, count, depth, sexpflag)
if (code == Sendcomment)
comstyle = SYNTAX_COMMENT_STYLE (c);
temp_pos = from_byte;
DEC_POS (temp_pos);
if (! NILP (current_buffer->enable_multibyte_characters))
DEC_POS (temp_pos);
else
temp_pos--;
if (from > stop && SYNTAX_COMEND_SECOND (c)
&& (c1 = FETCH_CHAR (temp_pos), SYNTAX_COMEND_FIRST (c1))
&& parse_sexp_ignore_comments)
......@@ -1973,7 +1971,10 @@ scan_lists (from, count, depth, sexpflag)
while (from > stop)
{
temp_pos = from_byte;
DEC_POS (temp_pos);
if (! NILP (current_buffer->enable_multibyte_characters))
DEC_POS (temp_pos);
else
temp_pos--;
UPDATE_SYNTAX_TABLE_BACKWARD (from - 1);
c1 = FETCH_CHAR (temp_pos);
temp_code = SYNTAX (c1);
......@@ -1984,7 +1985,7 @@ scan_lists (from, count, depth, sexpflag)
if (quoted)
{
DEC_BOTH (from, from_byte);
DEC_POS (temp_pos);
temp_pos = dec_bytepos (temp_pos);
UPDATE_SYNTAX_TABLE_BACKWARD (from - 1);
}
c1 = FETCH_CHAR (temp_pos);
......@@ -2000,8 +2001,7 @@ scan_lists (from, count, depth, sexpflag)
case Smath:
if (!sexpflag)
break;
temp_pos = from_byte;
DEC_POS (temp_pos);
temp_pos = dec_bytepos (from_byte);
UPDATE_SYNTAX_TABLE_BACKWARD (from - 1);
if (from != stop && c == FETCH_CHAR (temp_pos))
DEC_BOTH (from, from_byte);
......@@ -2055,7 +2055,10 @@ scan_lists (from, count, depth, sexpflag)
{
if (from == stop) goto lose;
temp_pos = from_byte;
DEC_POS (temp_pos);
if (! NILP (current_buffer->enable_multibyte_characters))
DEC_POS (temp_pos);
else
temp_pos--;
UPDATE_SYNTAX_TABLE_BACKWARD (from - 1);
if (!char_quoted (from - 1, temp_pos)
&& stringterm == FETCH_CHAR (temp_pos))
......@@ -2214,8 +2217,7 @@ scan_sexps_forward (stateptr, from, from_byte, end, targetdepth,
#define INC_FROM \
do { prev_from = from; \
prev_from_byte = from_byte; \
from++; \
INC_POS (from_byte); \
INC_BOTH (from, from_byte); \
} while (0)
immediate_quit = 1;
......
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